US4998061A - Watthour meter with temperature compensation for wye connected systems - Google Patents
Watthour meter with temperature compensation for wye connected systems Download PDFInfo
- Publication number
- US4998061A US4998061A US07/451,047 US45104789A US4998061A US 4998061 A US4998061 A US 4998061A US 45104789 A US45104789 A US 45104789A US 4998061 A US4998061 A US 4998061A
- Authority
- US
- United States
- Prior art keywords
- voltage
- current
- divider network
- voltage divider
- load
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/14—Compensating for temperature change
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
Abstract
Description
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/451,047 US4998061A (en) | 1987-09-21 | 1989-12-15 | Watthour meter with temperature compensation for wye connected systems |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/099,120 US4896106A (en) | 1987-09-21 | 1987-09-21 | Watthour meter for wye connected systems |
US07/451,047 US4998061A (en) | 1987-09-21 | 1989-12-15 | Watthour meter with temperature compensation for wye connected systems |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/099,120 Division US4896106A (en) | 1987-09-21 | 1987-09-21 | Watthour meter for wye connected systems |
Publications (1)
Publication Number | Publication Date |
---|---|
US4998061A true US4998061A (en) | 1991-03-05 |
Family
ID=26795599
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/451,047 Expired - Fee Related US4998061A (en) | 1987-09-21 | 1989-12-15 | Watthour meter with temperature compensation for wye connected systems |
Country Status (1)
Country | Link |
---|---|
US (1) | US4998061A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5545979A (en) * | 1994-09-02 | 1996-08-13 | Kabushiki Kaisha Toshiba | Power source device for watthour meter |
US6028426A (en) * | 1997-08-19 | 2000-02-22 | Statpower Technologies Partnership | Temperature compensated current measurement device |
US6229295B1 (en) * | 1992-02-21 | 2001-05-08 | Abb Power T&D Company Inc. | Apparatus for metering at least one type of electrical power over a predetermined range of service voltages |
WO2001038887A1 (en) * | 1999-11-23 | 2001-05-31 | Beijing Kebo Intelligent Instrument Co., Ltd. | A kilowatt hour meter with a switching power supply |
US6374188B1 (en) | 1996-10-22 | 2002-04-16 | Abb Automation Inc. | Energy meter with instrumentation systems and methods |
US6483290B1 (en) | 1992-02-21 | 2002-11-19 | Abb Automation Inc. | Apparatus for metering electrical power that determines energy usage data based on downloaded information |
US6559631B1 (en) * | 1998-04-10 | 2003-05-06 | General Electric Company | Temperature compensation for an electronic electricity meter |
US20040183521A1 (en) * | 2003-03-19 | 2004-09-23 | Phil Macphail | Power detectors for measuring power coupling |
US20050071096A1 (en) * | 2003-07-29 | 2005-03-31 | Lutz Bierl | Electric energy meter for an AC mains supply |
US20060038548A1 (en) * | 2004-08-17 | 2006-02-23 | Elster Electricity, Llc. | High voltage regulator for an electric meter power supply |
US20080036447A1 (en) * | 2001-09-25 | 2008-02-14 | Slater Byron J | Utility meter using temperature compensation |
US20130285640A1 (en) * | 2012-04-27 | 2013-10-31 | Lapis Semiconductor Co., Ltd. | Semiconductor device, measurement device, and correction method |
US20180299492A1 (en) * | 2015-08-19 | 2018-10-18 | Siemens Aktiengesellschaft | Self-powered measuring apparatus and measurement method |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4182983A (en) * | 1978-07-11 | 1980-01-08 | Westinghouse Electric Corp. | Electronic AC electric energy measuring circuit |
US4359684A (en) * | 1977-05-16 | 1982-11-16 | Enertec | Electronic watt-hour meter |
US4591810A (en) * | 1984-03-19 | 1986-05-27 | Westinghouse Electric Corp. | Pulse width modulator for electronic watthour metering |
-
1989
- 1989-12-15 US US07/451,047 patent/US4998061A/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4359684A (en) * | 1977-05-16 | 1982-11-16 | Enertec | Electronic watt-hour meter |
US4182983A (en) * | 1978-07-11 | 1980-01-08 | Westinghouse Electric Corp. | Electronic AC electric energy measuring circuit |
US4591810A (en) * | 1984-03-19 | 1986-05-27 | Westinghouse Electric Corp. | Pulse width modulator for electronic watthour metering |
Cited By (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7339805B2 (en) | 1992-02-21 | 2008-03-04 | Elster Electricity, Llc | Power supply having voltage blocking clamp |
US20040008019A1 (en) * | 1992-02-21 | 2004-01-15 | Hemminger Rodney C. | Method and apparatus for electronic meter testing |
US6229295B1 (en) * | 1992-02-21 | 2001-05-08 | Abb Power T&D Company Inc. | Apparatus for metering at least one type of electrical power over a predetermined range of service voltages |
US20050270015A1 (en) * | 1992-02-21 | 2005-12-08 | Elster Electricity, Llc | Method and apparatus for electronic meter testing |
US6762598B1 (en) | 1992-02-21 | 2004-07-13 | Elster Electricity, Llc | Method for providing optical test signals for electronic meter testing |
US6483290B1 (en) | 1992-02-21 | 2002-11-19 | Abb Automation Inc. | Apparatus for metering electrical power that determines energy usage data based on downloaded information |
US6504357B1 (en) | 1992-02-21 | 2003-01-07 | Abb Automation Inc. | Apparatus for metering electrical power and electronically communicating electrical power information |
US7239125B2 (en) | 1992-02-21 | 2007-07-03 | Elster Electricity, Llc | Method and apparatus for electronic meter testing |
US20070115022A1 (en) * | 1992-02-21 | 2007-05-24 | Elster Electricity, Llc | Power supply having voltage blocking clamp |
US7180282B2 (en) | 1992-02-21 | 2007-02-20 | Elster Electricity, Llc | Apparatus for metering at least one type of electrical power over a predetermined range of service voltages |
US6954061B2 (en) | 1992-02-21 | 2005-10-11 | Elster Electricity, Llc | Method and apparatus for electronic meter testing |
US6703823B1 (en) | 1992-02-21 | 2004-03-09 | Elster Electricity, Llc | Method and apparatus for electronic meter testing |
US20040105206A1 (en) * | 1992-02-21 | 2004-06-03 | Schleifer Fred F. | Apparatus for metering at least one type of electrical power over a predetermined range of service voltages |
US5545979A (en) * | 1994-09-02 | 1996-08-13 | Kabushiki Kaisha Toshiba | Power source device for watthour meter |
US6507794B1 (en) | 1996-10-22 | 2003-01-14 | Abb Automation Inc. | Energy meter with power quality monitoring systems and methods |
US6577961B1 (en) | 1996-10-22 | 2003-06-10 | Abb Automation Inc. | Energy meter having programmable functions |
US6374188B1 (en) | 1996-10-22 | 2002-04-16 | Abb Automation Inc. | Energy meter with instrumentation systems and methods |
US6028426A (en) * | 1997-08-19 | 2000-02-22 | Statpower Technologies Partnership | Temperature compensated current measurement device |
US6559631B1 (en) * | 1998-04-10 | 2003-05-06 | General Electric Company | Temperature compensation for an electronic electricity meter |
WO2001038887A1 (en) * | 1999-11-23 | 2001-05-31 | Beijing Kebo Intelligent Instrument Co., Ltd. | A kilowatt hour meter with a switching power supply |
US7805262B2 (en) | 2001-09-25 | 2010-09-28 | Landis + Gyr, Inc. | Utility meter using temperature compensation |
US20080036447A1 (en) * | 2001-09-25 | 2008-02-14 | Slater Byron J | Utility meter using temperature compensation |
US6995580B2 (en) * | 2003-03-19 | 2006-02-07 | Sige Semiconductor Inc. | Power detectors for measuring power coupling |
US20040183521A1 (en) * | 2003-03-19 | 2004-09-23 | Phil Macphail | Power detectors for measuring power coupling |
DE10334517B4 (en) * | 2003-07-29 | 2006-06-14 | Texas Instruments Deutschland Gmbh | Meter for electrical energy for an AC network |
US7212931B2 (en) * | 2003-07-29 | 2007-05-01 | Texas Instruments Deutschland Gmbh | Electric energy meter for an AC mains supply |
US20050071096A1 (en) * | 2003-07-29 | 2005-03-31 | Lutz Bierl | Electric energy meter for an AC mains supply |
DE10334517A1 (en) * | 2003-07-29 | 2005-05-25 | Texas Instruments Deutschland Gmbh | Meter for electrical energy for an AC network |
US7355867B2 (en) | 2004-08-17 | 2008-04-08 | Elster Electricity, Llc | Power supply for an electric meter having a high-voltage regulator that limits the voltage applied to certain components below the normal operating input voltage |
US20060038548A1 (en) * | 2004-08-17 | 2006-02-23 | Elster Electricity, Llc. | High voltage regulator for an electric meter power supply |
US20130285640A1 (en) * | 2012-04-27 | 2013-10-31 | Lapis Semiconductor Co., Ltd. | Semiconductor device, measurement device, and correction method |
US9197217B2 (en) * | 2012-04-27 | 2015-11-24 | Lapis Semiconductor Co., Ltd. | Semiconductor device, measurement device, and correction method |
US9584134B2 (en) | 2012-04-27 | 2017-02-28 | Lapis Semiconductor Co., Ltd. | Correcting temperature based oscillation frequency errors in semiconductor device |
US9838022B2 (en) | 2012-04-27 | 2017-12-05 | Lapis Semiconductor Co., Ltd. | Semiconductor device with oscillation frequency error correction |
US10411715B2 (en) | 2012-04-27 | 2019-09-10 | Lapis Semiconductor Co., Ltd. | Semiconductor device, measurement device, and correction method |
US20180299492A1 (en) * | 2015-08-19 | 2018-10-18 | Siemens Aktiengesellschaft | Self-powered measuring apparatus and measurement method |
US10514397B2 (en) * | 2015-08-19 | 2019-12-24 | Siemens Aktiengesellschaft | Self-powered measuring apparatus and measurement method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
AS | Assignment |
Owner name: SIEMENS TRANSMISSION & DISTRIBUTION, LLC, NORTH CA Free format text: MERGER;ASSIGNOR:LANDIS & GYR UTILITIES SERVICES, INC.;REEL/FRAME:009472/0887 Effective date: 19980625 |
|
AS | Assignment |
Owner name: SIEMENS POWER TRANSMISSION & DISTRIBUTION, LLC, NO Free format text: MERGER;ASSIGNOR:LANDIS & GYR UTILITIES SERVICES, INC.;REEL/FRAME:011461/0746 Effective date: 19980626 |
|
AS | Assignment |
Owner name: SIEMENS POWER TRANSMISSION & DISTRIBUTION, INC., N Free format text: CERTIFICATE OF INCORPORATION;ASSIGNOR:SIEMENS TRANSMISSION & DISTRIBUTION, LLC;REEL/FRAME:011700/0469 Effective date: 19990922 |
|
AS | Assignment |
Owner name: SIEMENS POWER TRANSMISSION & DISTRIBUTION, INC., N Free format text: CORRECTIVE CERTIFICATE OF INCORPORATION TO CORRECT ASSIGNOR'S NAME PREVIOUSLY RECORDED AT REEL 011700, FRAME 0469.;ASSIGNOR:SIEMENS POWER TRANSMISSION & DISTRIBUTION, LLC;REEL/FRAME:012043/0323 Effective date: 19990922 |
|
REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20030305 |
|
AS | Assignment |
Owner name: LANDIS+GYR INC., INDIANA Free format text: CHANGE OF NAME;ASSIGNOR:SIEMENS POWER TRANSMISSION AND DISTRIBUTION, INC.;REEL/FRAME:014624/0178 Effective date: 20031006 |
|
AS | Assignment |
Owner name: LANDIS+GYR LLC, INDIANA Free format text: CHANGE OF NAME;ASSIGNOR:LANDIS+GYR INC.;REEL/FRAME:044282/0678 Effective date: 20170501 |